Improvement in cultivators



faire :frer-.ns

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. ll3,50, dated April 1l,1871.

To @ZZ whom it Weary concern.-

Beit known that I, ALMoN HUNT, of Macomb, in the county of McDonough andState of Illinois, have invented certain Improvements in Cultivators, ofwhich the following is a specification.

The nature of my invention relates to improvements in that class ofcultivators known as the walking-cultivator, and the inven-` tionconsists, first, in improvements in the joint or coupling by which theplow-beams are attached to the main frame, all as hereinafter fullydescribed 5 second, in the arrangement of devices for raising andlowering the main frame, and thereby adjusting the depth of running, allas hereinafter fully described; third, in the arrangement of devices, incombination with the main frame and coupling, for relieving neck-draft,all as hereinafter fully described.

In the accompanying drawings, Figure 1 is a perspective view of amachine 'embodying my invention. Fig. 2 is an elevation partly insection of detached portions of Fig. 1. Fig. 3 is an elevation of adetached portion of Fig. 1.

A A A A A represent the main frame, consisting of a horizontal bar, A,supported by a pair of uprights, A A, at each end, the whole beingsupported and strengthened by the braces a a ct a, running from theuprights A to the draft-pole B, which, in turn, is supported on theelevated bar A.

C C represent the wheels, of ordinary construction, for supporting themain frame. p

D D are the beams of ordinary cultivatorplows, provided with hooks cl d,by which the rear ends of the plow-beams may be heldin an elevatedposition by engaging the said hooks with the rear braces, a a.

E E are-the axles, crank-shaped, as plainly shown in the drawings, andsecured to the lower ends of the uprights A A A A by the hook-bolts G GGG, their outerv ends forming the spindles for the wheels C C.

II H are thimbles, made of any suitable metal, and the holes throughthem longitudinally corresponding with and 4fitting neatly on thecrank-axles E E, between the uprights A A A A. The thimbles H H are castsolid,

with their upper and lower `sides flat, with studs 7i h h h h hprojecting therefrom.

I I are the beam-plates, secured at one end to the ends of the beams DD, and their other ends projecting beyond the thimbles H H far enough toreceive the bolts J J, with nuts j j. The beam-plates I I are piercednear their centralportion for the reception ofthe studs h 71,.

K is the double-tree, pivoted on the draftpole B, and has pendants L Lfrom each end, to the lower ends of which the hooks Z Z are attached,for hitching thereto the draft-animals. From near the centers of thependants L L rods N N extend to the nprights A A.

The operationsof my invention are deemed simple from an inspection ofthe drawings.

To adj ust the depth of running of the plows, it is only necessary toloosen the nuts on the shanks of the hook-bolts G, when the crankaxles EE may be easily turned to raise or lower the main frame, and with it thebeams D D, as desired, and as shown by the dotted and full lines at Fig.3, which is a side view of one of the outside uprights A and thecrank-axle E and hook-bolt G.

To adjust the distance of the plows apart, the nut on the bolts J .I maybe loosened, and the hole through the central portion of the beam-platesI I placed over either of the series of studs h h h, when, the nuts j jbeing again tightened up, the beams D D may be freely moved to the rightor left on the studs h as pivots, to avoid any plants which may be outof line, or for other purposes. Vertical movement, or the necessaryup-and-down movement, of the rear ends of the plow-beams is obtained bythe thimbles H H. revolvingor turning on the axles E E. This arrangementof the coupling connecting the beams D with the mainframe, it will beplainly seen, will allow perfect freedom in the usual and nec-4 essarymovements of the plow-bean1s,while at the same time it will preventwabbling or vibratory twist-ing or turning of the rear ends of saidbeams, holding them perfectly steady. The nuts j j may be tightened up,also, at any time, to compensate for wear.

The arrangement of the draft-equalizer K L L N N, it will be seen,allows a free oscillating movement of the double-tree K, at the sametime connecting the draft, by the rodsNv N, to near the lower ends ofthe uprights A A, and thereby removing all neckdraft from the team.

.Y vI claim as my iuvention- 2. Thethimbles H, constructed as described,l. A Wheel-eultivator composed of frame and arranged to operate withaxles E aud A A', axles E, bolts G, thimbles H, having` beams D, as andfor the purpose set forth.

studs h, beams D, plates l', and bolts J, polev ALMON HUN T. B, andequalizer K LN, the Whole constructed 1Witnesses:

and operating substantially as aud for the pur- J. N. PEARSON,

poses set forth. ASA A. lWIATTEsON.

